Dental OSCE (Objective Structured Clinical Examination) Practice Exam

What is the best preventive measure against thrombus formation in veins?

1. Frequent walking

2. Using ice packs

3. Prolonged bed rest

4. Increased salt intake

The correct answer is: Frequent walking

Frequent walking is recognized as the best preventive measure against thrombus formation in veins, particularly in the context of preventing deep vein thrombosis (DVT). Walking promotes healthy blood circulation and helps to maintain proper venous return to the heart. This increased movement prevents stagnation of blood in the veins, which is a critical factor in thrombus formation. During periods of inactivity, such as long bed rest or sitting for extended periods, the risk of venous stasis increases, leading to an elevated risk of clot formation. Therefore, regular ambulation is essential for promoting circulation and reducing this risk. Other options, such as using ice packs, are generally not effective for preventing thrombus formation and can sometimes even restrict blood flow. Prolonged bed rest significantly raises the risk of developing clots, as it decreases activity and can lead to stasis. Lastly, increased salt intake does not have a beneficial impact on clot prevention and could lead to other health issues, such as hypertension. In summary, frequent walking enhances blood flow and reduces the chances of thrombi forming in veins, making it the most effective preventive measure.